The identification of an unknown bacterial environmental isolate through a series of morphological‚ physiological and differential exercises. The purpose of the environmental isolate report is to learn what is necessary in order to take an unknown environmental isolate (EI) and identify it. This was achieved through a series of exercises that provided information on the morphological‚ physiological and biochemical traits of the EI which were then compiled and interpreted in order to make a presumptive
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CH4 Prokaryotic Cells No nucleus Plasma membrane Selective permeability lets molecules pass. Enzymes for ATP production. Photosynthetic pigment on folding (on chromatophores or thylakoids). Leakage occurs if damaged by alcohols‚ ammonium‚ and polymyxin antibiotics. Phospholipid bilayer‚ peripheral proteins‚ integral protein‚ transmembrane protein‚ sterols‚ glycocalyx Movement across Membranes Simple diffusion: Movement of solute from high concentration to low Facilitative diffusion: Solute
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Case Study Report for Unknown #49 A new school for girls was opened in a larger village in Northern Pakistan‚ and the teachers were proud to have convinced many families in the surrounding villages to allow their daughters a basic education. The school was a success‚ and the 6-10 year olds girls quickly learned how to read and write and were even instructed in the sciences. However‚ 2 weeks before summer break‚ many of the girls and the teacher developed breathing problems that included severe coughing
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Organic Chemistry II Lab 9 Fermentation of a Carbohydrate: Ethanol from Sucrose * Introduction Ethanol is one of the oldest alcohols and also the least toxic one. Industrially‚ ethanol is made most economically by hydration of ethylene. However‚ ethanol that is intended for human consumption must‚ by law‚ be prepared by fermentation. By either method‚ ethanol‚ of course‚ has the same formula‚ structure‚ and properties. The fermentation takes place with the assistance of enzymes from yeast
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Observing and Analyzing the Behaviors of Daphnia‚ Pill Bugs‚ Amoeba and Uglena Under Certain Experimental Conditions Testing Reactions to Gravity‚ Light and Food Jacob Kluth and Kelsey Jankowski Introduction This lab has introduced the use of daphnia‚ pill bugs‚ amoeba and Uglena. We the AP Biology students were first introduced to the test subjects to test his or her capability of handling living organisms for upcoming science experiments. The AP Biology students were asked to create original
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LAB#: 20 SKILL: Planning and Designing OBSERVATIONS: A student is given a small beaker containing an unknown salt‚ x. The salt is crystalline‚ deliquescent and colorless. The student is asked to perform test and observation on the salt to determine the cation and anion present. HYPOTHESIS: Perhaps by using the flame test or reacting salt x with NaOH‚ or NH4OH the cation could be distinguished by observing the color changes or solubility while reacting salt x with H2SO4 or a mixture of copper
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is the capacitative reactance‚ R is the resistance‚ and ω = 2π f ( f is the linear frequency). Apparatus • PC with DataStudio installed • Science Workshop 750 USB Interface Box • Power Amplifier • Voltage Sensor • AC/DC Electronics Lab Board • LCR meter • Connecting patch cords Experimental Procedure The experimental procedure can be divided into three parts: Part I: Using a Frequency Scan to Determine the Resonance Frequency • The first
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LSM1102 Lab Report Introduction Transformation is a process which involves plasmid DNA being bound to the cell surface and the subsequent uptake of DNA by the cell (Panja et al.‚ 2008). For artificial transformation of E. coli cells with plasmids‚ plasmid DNA has to be extracted from bacterial cells using the High-Speed Plasmid Mini Kit‚ which is then mixed with competent E. coli cells followed by heat shock and the streaking of transformed cells on two different types of agar plate (LB and LB+ampicillin)
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Laboratory Report The Plasma Membrane I. Introduction The Plasma membrane is the edge of life‚ the boundary that separates the cell from its surroundings. It controls the traffic of materials in and out of the cell. (Reece‚ 2011). It is incredibly thin that is very vital in maintaining the integrity of the cell. Not only does the plasma membrane bind the other organelles‚ it also forms a dynamic structure which gives them their remarkable activity and selectivity. (Hickman‚ 2008). Diffusion
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Review Questions 1. Which type of S. pneumoniae strain is the most virulent‚ encapsulated or unencapsulated? 2. What allows S. pneumoniae to adhere to cell walls‚ phosphorylcholine or polysaccharide? 3. Which infections are most commonly caused by S. pneumoniae‚ arthritis & peritonitis or meningitis & bacteremia? both 4. What can society do to help protect itself from antimicrobial resistance‚ increase or decrease antimicrobial usage? Decrease usage 1. Staphylococcus aureus‚
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